Offloading Telematics Calling to Bluetooth-Connected Phone

摘要

In current state-of-the-art automotive products, Bluetooth is used to incorporate conversational audio and its control from mobile phones and smartphones. This augments vehicles with a telecommunications device that is not explicitly built into the vehicle (i.e. telematics). Often, the telematics solutions offered in vehicles provide a direct link to convenience and/or emergency services through cellular network. Even if a vehicle is equipped with a telematics device, a vehicle that is connected to a Bluetooth phone can intelligently decide if and when utilizing the internal telematics device for cellular network service connection, or the Bluetooth-connected phone. For vehicles with this added decision logic, it is possible to construct an experience that looks like an integrated telematics module is present within the vehicle, even though all vehicle-to-network connectivity is provided directly through the Bluetooth-connected phone. So, if and when a user interacts with the vehicle controls for telematics, the vehicle maps each of those controls to a Bluetooth Hands-Free Profile command, resulting in call initiation, audio exchange, and call termination from the device through the speakers, microphone, and controls of the vehicle.